Willis has made good on promises to claw back cash and bolster the Government's coffers.

On average, more than $5.86 billion will be freed up per year, across more than 240 savings and revenue initiatives.

That's being re-funneled into funding core services and tax relief.

Cost cuts are broad, hitting everything from the Financial Markets Authority, to Tourism New Zealand's fund to market the country.

Programmes feeling the pinch include those for enabling small businesses and an initiative for the transition from fossil fuels.